【Premium Material Construction】20x4.0 Fat Tire Tube is made of high-quality butyl rubber, which has excellent durability and effectively prevents punctures and blowouts, ensuring a consistently enjoyable riding experience.
【Replacement 20x4 Bike Tube】20x4 Bike Tire Tube fits most wide-tire bikes and is suitable for bikes or e-bikes with 20-inch tires that are between 3.5" to 4" wide (20" x 3.5 inner tube; 20" x 3.6 inner tube; 20" x 3.8 inner tube; 20" x 4.0 inner tube). (32mm Schrader Valve)
【Good Air Tightness】20 x 4 fat tire tube has better air tightness, heat resistance and wear resistance, and is not easy to break or deform during use. The inflatable port has a protective cover, so the gas in the inner tube is not easy to leak and is more durable.
【Smooth Riding Experience】Our 20 x 4.0 tire tube features sturdy construction and excellent shock absorption for a smooth and comfortable ride on all surfaces, ensuring your bike ride is smoother and more enjoyable.
【Easy lnstallation】Fast and hassle-free installation allows you to spend more time riding and less time changing inner tubes.The ebike tube 20x 4.0 comes with two tire levers that reduce tube installation time by 50%, making it easier to remove and install without damaging anything.
【Designed for Fat Tire】Specifically designed for 20x3.5/4.0 fat tires, our inner tubes fit perfectly to improve the overall performance of your fat tire bike, ensuring a smooth and comfortable ride, suitable for electric bikes, mountain bikes, gravel bikes and city bikes, etc..